Woodworking-machine.



G. G. SHEELEY & F. J. GRUBNEWALD.

WOODWORKING MACHINE.

APPLICATION FILED JULY 26, 1909.

Patented Aug. 25, 1914.

6 SHEETS-SHEET 1.

QNounugd.

THE NORRISPETERS (O.. PHOTO-LITHO. WASHINGTON. D. C.

C. O. SHEELEY & F. J. GRUENEWALD.

WOODWORKING MACHINE.

APPLICATION FILED JULY 26, 1909.

1, 1 08,854. Patented Aug. 25, 1914.

6 SHEETS-SHEET Z.

C. U. SHEBLEY & F. J. GRUENEWALD.

WOODWORKING MACHINE.

APPLICATION FILED JULY 26, 1909.

1,1 08,854, Patented Aug. 25, 1914;

e SHEETS-SHEBT 3.

THE NORRIS PETERS CO. PHOTO-LITHO.v WASHINGTON. D, C

, C. G. SHEELEY & F. J. GRUENEWALD.

WOODWORKING MACHINE.

APPLICATION FILED JULY 26, 1909.

1,108,854. Patented Aug. 25, 1914.

6 SHEETSSHBET 4.

THE NORRIS PETERS CO. PHOTD-LITHO.. WASHINGTON. D. C

O. G. SHEELEY & F. J. GRUENEWALD.

WOODWORKING MACHINE.

APPLICATION FILED JULY 26, 1909.

1,108,854. Patented Aug. 25, 1914.

6 SHEETS-MEET 5.

8// e l/ 7 9 98 I e I e J W g z M l vd'neooeo n w WM 6* WW" G. G.SHEBLEY & F. J. G RUENEWALD. WOODWORKING MACHINE.

APPLICATION FILED JULY 26, 1009,

1 10 54 Patented Aug. 25, 1914.

6 SHEETSSHEBT 6.

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9 o o fit 0 c I 7 19 e 6 cl I e 0/ 633 6,35 d 1| Z 22 d3 9 II 64 d v 1;

THE NORRIS PETERS C0,. FHOTO-LITHO. WASHINGTON. Dv C UNITED STATESPATENT @FFICE.

CHAR-LES c. SHEELEY, or HARSI-IIVIAN, AND recursion J. GR-UENEWALD, orDAYTON,

' OHIO.

WOODWORKING-MAGHINE.

Specification of Letters Patent.

Patented A11 25, 1914.

- Application filed July 26, 1909. Serial No. 509,552.

To all whom it may concern Be it known that we, Crnumns C. Suits Liar, acitizen of the United States, residing at liarshman, Montgon'ierycounty, Ohio, and Fnnoiuon J. Gnnnivnunino, a citizen of the UnitedStates, residing at Dayton, in the county of Montgomery and State ofOhio, have invented certain new and useful improvements inlVoodworking-Machines, of which the following is a specification.

This invention relates to improvements in wood working machines, and itespecially relates to a machine for turning wood to various shapes whichwill be automatic in its operation.-

The object of the invention is to provide an automatic machine forturning wood which will be simple in its construction and ellicient inits operation.

The invention consists in the construction and combinations of partshereinafter described and set forth in the claims.

In the accompanying drawings, Figure 1 is a rear elevation of a machineembodying the invention. Fig. 2 is an elevation of the right-hand sideof the machine. Fig. 3 is an elevation of the opposite side of themachine. Figs. 4 and 5 are detail views of the clutch mechanism forstarting and stopping the operating shaft for some of the parts. Figs.6, T and 8 are details of some of the devices for engaging and carryingthey work. Fig. 9 is a detail of the devicesfor operating the threadsaws. Fig. 10 is a detail of one part of the driving mechanism. Figs.11, 12 and 13 are details of part of the feeding mechanism for the work.Fig. 14 is a detail of a part of the mechanism for operating the cut offsaw. Fig. 15 is a detail in section of one of the tailstocks. Fig. 16 isa detail of one of the cutting tools. Fig. 17 is a detail in section ofthe work-carrier and some of the connected parts. Fig. l8 is a detail insection of the intermittently rotating shaft and its clutch mechanism.Fig. 19 is a plan view of the machine.

Like parts are represented by similar characters of reference in theseveral views.

The machine which we have devised may be adapted for turning a .greatvariety of different kinds of work to any shape desired. The machinewhich we have shown in the drawings is set for turning the ordinarywooden insulating pins now in common use and employs two sets of cuttersand one set of threading cutters. These cutters and threading cuttersare revolved continuously at a great speed by mechanism which operatesindependently of the driving mechanism for the other operating devices,which last-mentioned devices are arranged to operate intermittently. Asthe strip of wood is fed into the machine it is sawed off into properlengths by what we will term the cut-off saw, which is also continuouslydriven at a high speed. After being sawed off, the billets of wood aregrasped by an intermittently rotating carrying device which carries itinto proper position to be operated upon by the cutting tools and thenfinally discharges it into a suitable recep' tacle. In the presentmachine, this rotating carrying device is arranged to be stopped andstarted each one-fourth revolution and is provided with four sets ofdevices for grasping and holding the Work, this rotating carrier and itsgrasping and holding devices corresponding somewhat to the headstock andtailstock of the ordinary lathe. Means are also provided for rotatingthe work at the point where it is being operated upon by he cuttingtools. In the op eration of this carrier and its grasping and holdingdevices, four different billets of work are being operated upon at thesame time; that is, one set of the grasping and holding devices will bein the act of g asping the length of work which has been sawed oil last,the next set will be holding and rotating a billet of wood before thefirst cutting device; the next set will likewise be holding and rotatinga length of work before the next or second cutting device, and the lastset will be holding and rotating a length of work before the threadingcutters. During the period at which the lengths of wood are held beforethe respective cutting and threading devices, the wood will be rotatedsomething over one revolution to insure the cutting devices acting uponthe entire circumference of the same.

Operating devices for the cuttera-As before stated, in the presentmachine there are two sets of cutters and one set of threading cutters,rotated continuously. These 1 equally spaced about the rotating carrier,one set of cutters preferably at the front of the carrier, one setbeneath the carrier, and the set of threading cutters at located at therear of the carrierthe feedin devices. 7 23 i the cut-off saw. and thehopper or holder for the work before being taken up by the carrier beinglocated above the carrier. The power to drive these cutting andthreading devices is applied. to the pulley, a (Fig. 2) secured to thetransverse shaft, (4 located in suitable, hearings in the lower frontpart of the main frame, A. The opposite end of this shaft has a largepulley, o (Fig. 3) about which passes the belt, 64 which drives thecutter shafts (r and (6 through the medium of the pulleys a. and osecured to'the respective shafts; one of these shafts being located atthe front of the machine and carrving the first set of cutters (4- see li'g. for detail) and the other shaft a, beingiocated in the'lowercentral portion of the machine and carrying the second set of cutters,a" (F 1). The shaft, (4

the rear of the niachine'inline with the shaft, (1.. carries the seriesof threading cutters a, (Fig. 1) and'is driven from the pulley, (ithrough the medium of the belt, a. driving 'the pulley, 61. on thestationary shaft a, belt o and pulley a a" is on said threading cuttershaft a an adjustable idler pulley for the belt (4 *m'ng (Xe vines for;'1/Z'-0/j".s a'w.'As previously stated the cut-off saw is located atthe upperpart of the machine. This saw, represented by L, is secured tothe shaft 6 (Figs. 2 and located in suitable bearings at the end ofa'pivoted I'OCliGF-tillilffi, pivotall'y supported on a rod Z), locatedin a suitable support A secured to the main frame. The shaft apreviously referred to. carries a pulley 7), which continuouslydrivesthe saw through the medium of the belt, 7), pulley I)". looselysupported on. the rod, belt 7) and pulley 6 secured to the saw-shaft B3y this means the saw is continuously revolved at ahigh speed.

Driving devices for com-shaft and inter- .imittmtly rotatingsfmfzt-Jddmt we will term the can'i-sha ft is (Figs. 1, 2, 2i) and 9).located at the lower rear part of the machine and has secured. thereto aseries of represented by 0 vcams for throwing certain of the parts .leyloose on the shaft which extends transversely across the machine, pinionsecured to said pulley (see Fig. 10)

gear c5 loosely journaled on the frame, pin-' ion 0 secured to the hubof said gear 0 gear 0 meshing with said pinion and fast on the shaftsmall gear a loosely journaled on the frame and meshing with said gear(7 and also. with a pinion 0 (shown in dotted lines), and gear securedto said pinion 1 and. meshing with the large gear This camshaft is 0which gear 0 is secured to said "camshaft (i. By this train of gearingthe said cam shaft is continuously rotated at ,a greatly reduced speed,this speed in the pres ntv machine being one-twelfth as fast as'thepulley c. The intermittently rotating ment with this continuouslyrotating sprocket-wheel, (Z 1nd causing it to rotate there with forone-fourth revolution of the carrier and for automatically disengagingit therefrom, but before describing this startand-stop meclma'iisn wewill first describe the work carrierdevices, which devices are drivenby'said shaft, (Z, and form means for disengaging said shaft from its"driving sprocket at proper-intervals.

Wm:- carrierf The main body of the carrier consists of a spool 6 (Fig.17 for detail) mounted upon a bearing, 6, secured to a portion A ofthemain frame, which bearing preferably has a collar or enlarged portion '6against which one end of the spool is seated. The spool has at each enda disk, c and e, the one 0 having gear teeth 0 arranged about itsperiphery. Secured to the intermittently operated shaft, (Z isa gear 6(see Fig. 1) which drives the carrier through the medium of theintermediate gear a meshed with the gear teeth 6; the proportion of thegearsbeing such that the carrier will be rotated preferably at about hestocks are provided with pinions, e which= mesh with a gear 6 (Figs. 1,3 and 17 secured to the shaft this shaft, being 1on1:- naled 1n theframe part A and bearing 0 at one end, and inv a bearing 0 at the otherend;. said bearing 6 being in the nature of a; plate which is secured tothe bearing 6 and serves also to retain the car rier on its bearing,said disk 6 being preferably formed separate. from the spool, e Theresult of this construction. isthat every time the carrier is stopped,the respective headstocks will be. caused to revolve by reason of thecontinuously rotating gear 6 meshing with the respective pinions 6 forthe purpose hereinafter referred to. The opposite disk 6 is providedwith a series of four plungers (Fig. 1 and also Fig. 15 for detail)which correspond to the tailstock of a lathe. Each .of these plungers ortailstocks is provided with a point e for engagement with the work andare normally spring-pressed away from engaging position by a spring 6located between the disk, 6 and a collar 6" on the said plunger; theplunger being provided with a second collar, 0 located in a recess, 6 inthe disk to form a stop. The respective tailstocks are located directlyopposite the headstocks and cooperate therewith in the manner more fullydescribed. Each of these tailstocks is adapted, at a certain point ineach complete revolution, to be pressed inwardly for the purpose ofengaging the work and to be held in engaging position for nearly thecomplete revolution of the carrier and then be automatically releasedand pressed back to disengaging position by its spring. Lo cated in anopening c of the frame part A is a plunger 6 the location of thisplunger being such that the inner end thereof will lie adjacent the endof each of the tailstoeks e at a certain point in the revolution of thedisk 0 The outer end of the plunger is connected to a toggle-jointedlever, 6 (see Figs. 1, 2 and 7) pivoted in a frame, 6 and pivotallyconnected by a link, 6 to a pivoted lover a, which lies in the path of apin 6 on the rotating gear 0 The gear, 0 revolves four times as fast asthe tailstock carrying disk, 0 and the adjustment of the parts is suchthat as each of the tail stocks reaches a certain pointin therevolutionof the disk, a the plunger 0 will be forced outwardly against saidtailstocks and force them into engagement with the work. This operationtakes place during one of the intermittent stops of the carrier beforereferred to and the carrier will immediately begin another intermittentmovement by reason of the automatic starting devices which will bedescribed presently. As soon as the carrier starts its movement, thetailstock will be held in engaging position with the work by a circulartrack, 6 locatedabout the inner side of the frame part A (Figs. 1, 8 and15) about which the ends of the tailstocks ride. This track begins at apoint adjacent the opening 0 and terminates at a point somewhat removedtherefrom. As the end of the tailstock rides off the track it will beretracted by its spring and the work released and this operation willtake place after the work has been acted upon by all of the cutting andthreading devices.

Start and 8250p mechanism for work car- 7"2Ter.As before stated theshaft, (I, which drives the workcarrier has loosely running thereon acontinuously rotating sprocketwheel, al he hub of this wheel providedwith a clutch face, (Z and secured to the shaft, (Z, is an opposingclutch face, CZ. (See Fig. 1 and also Fig. 18 for detail.) Thesprocket-wheel is capable of longitudinal movement on the shaft and atthe proper time the clutch faces are thrown into engagement with eachother by the cam, d", on the continuously revolving gear, contacting thecollar, (Z which encircles the shaft but is in no wise connectedtherewith; thiscollar lying adjacent the hub of the sprocketwl1eel. Aspring, 6Z9, tends to force the sprocket-wheel and its clutch face intodisengaging position. The cam, al is a comparatively short one andsimply acts to throw the clutches into engagement. The clutches are heldinto engagement by a small block, on a lever, (Figs. l and pivoted at (Zto a suitable point on the frame at its lower end and" piivotally con--nected at its upper end by a link d to a bellcrank lever, (Z alsopivoted to the frame, and having a spring, c, which normally tends topull the block, (Z into position to hold the clutches into engagement,by pro viding a stop for a small block, (Z locate on a rod, connectedwith the collar (Z The rod (Z is extended through the bearing, (Z forthe'shaft so as to keep the collar, cl, from turning. The end of one armof the bell-crank lever is provided with a rounded head 6 18 which liesin the path of movement of the collars e of the tail stocks a and isadapted to be engaged thereby to withdraw the block (Z and thus permitthe clutches to become disengaged. When the block (W is withdrawn, itwill be understood that the block will form a bar to its return tonormal position, but that so soon as the block d is withdrawn by theactionof the cam the block (Z will, by the action of the spring cl bedrawn up into the path of movement of said block and thus hold theclutches in engagement. A spring (Fig. 18) arranged about the shaft, (Z,between one of its bearings c and a collar d secured to the shaft,permits the shaft and hence the clutch a to yield if necessary to insurethe proper engagement of the teeth of the clutches; a collar (Z servingto limit its movement in one direction. *0 have also provided forpermitting the clutch d to have a limited rotating movement independentof the shaft to insure the teeth of the clutches being fully engagedbefore the load is brought upon the sprocket wheel, (Z, by providing theclutch cl, with a slotted opening (Z into'which projects a pin ([22secured in the shaft by a set-screw (5; a spring (Z secured to shaftthrough the medium of the set-screw and also to the clutch serving tonormally hold the pin at one end of the slot. This construction willobviate any breakage which might occur by connecting the shaft with thesprocket 'wh eel before the collar 6Z8 has ridden fully upon its cam.

By this construction it will be seen that in asinuch as the gear, 0revolves four times to every revolution of the carrier, the clutcheswill be thrown into engagement and the shaft cl, started at eachone-fourth of a revolution of said carrier and at the end of thisone-fourth revolution the clutches will be disengaged. by the meansdescribed and the carrier stopped thus causing the carrier to haveii'itermittent movements of one fourth revolution, corresponding to thenumber of engaging points for the work represented by the respectivesets of headstocks and tailstocks.

Feeding device for 25726 i00r]c.-A s before stated, the work is fed tothe machine in long strips. These strips are preferably square incross-section and of a uniform size as far as height and width areconcerned. The strips, indicated by reference character j in Fig. 3, arefed between the rolls f and P, (Fig. 3) which rolls are revolublymounted in the supporting casting f supported from. the main frame bythe brackets f These feed rolls are driven from the intermittentlyrotating carrier heretofore described, so that the said rolls will havean intermittent feeding movement. Located in the supporting standard Ais a gear f, which is driven by the gear teeth cf of the carrier. Thisgear f has integrally connected therewith a beveled gear P, which mesheswith a beveled pinion f, which is connected to a shaft journaled in thecasting F. The opposite end. of the shaft-has a beveled gear 7"" meshingwith the beveled gear-f secured tov a gear f vhich gear 7' is connectedto the feed roll. j. The feed roll f also has a gear j meshing with thegear f The result ofthis construction is that at each intermittentmovement of the work carrier, the feed rolls and f will be rotatedtoward each other so as to cause the work to be fed into proper positionto be operated upon by the machine, in the marner hereinafter more fullydescribed. The feed roll f is preferably arranged so as to be heldyieldingly against the strip of wood to permit it to yield or slide ifnecessary to compensate for the varying size of the work and also forlack of proper adjustment of the stop for the work hereinafter referredto. As shown in Fig. 3 the journals of the yielding roll f are mountedin slotted bearings in the casting f and bearing agaii It the journal ofthe r ll is a yoke f which is yieldingly held against said journals by aspring [4113 arranged between said yoke and a collar f on a rod fsecured to the casting.

Arranged adjacent to the feed rolls 7" and f and supported by thecasting f is a guide 7' (Fig. 1) of the same shape the work, which guideextends in the proximityv to a hopper or holder into which hopper thework is fed and retained after being sawed oil until such time as thecarrier engages the same in the manner before described. This hopper orholder is shown in Figs. 1, 11, and 13. Secured to the transverse rodbefore described are two projecting arms 3 To the outer ends of thesearms are pivoted two projecting U-shaped side frames 1 The lower ends ofthese frames are connected by a transverse rod 9 and the frames arefurther supported and secured by an arm 9 also secured to the cross bar'5 The arm is preferably connected to the crossbar in a manner whichwill yioldingly hold said frames so that in case of any undue strainfrom any cause the frames will be permitted to yield slightly to obviatebreakage. The lower end of the arm a" has therein a slotted opening 9which fits over the cross-bar g and a spring g secured to the cross barand also to the arm normally under tension serves to yieldingly connectthe said parts in a man ner which will serve to steady and support theframes but at the same time permit them to yield if necessary. Securedto the respective frames g coincident with. the

guide 7 is a guide 9, having a removable bottom g this latter guidebeing conformed to the shape of the guide f This removable bottom issecured to a swinging frame the side arms 9 of which are pivoted to theupper parts of the frame as shown at Pivoted on oneof the arms of thisframe is a pawl normally pressed by a spring into position to be engagedby a finger secured to the rocker-arm 72 before described. As will bemore fully described hereinafter, this rocker-arm is given anintermittent rocking movement for the purpose of bringing the cut-oilsaw into and out of action. The result of the construction thus fardescribed is that as the arm 5 is rockedto lower the saw, the finger 9will ride over the beveled nose 5 of the pawl 9 and, as the rockerarmreturns, this finger will engage the nose of the pawl so as to carry theframe 9 about its pivotal point and thus swing the movatle bottom of theguide 9 back to the position shown in Fig. 12. This permits the piece ofwork which has last been sawed off to droo down onto the fin 'ers 0'which fin 'ers l i. u 7 b are pivoted on the rod 9 and are normallysrning-pressed by springs 9 into the position shown in Figs. 11 and 12.Also pivoted to one side of each of the lJ-shaped frames 5 (which sideis'shorter than the opposite side) is a yieldable finger g" normallyyield and permitthe work to be carried from the hopper or holder by thecarrier. There is provided a stop 9 for the strip of wood. on one sideof the side frames, 9 at the end of the guide-way g.

Unto/7 saw.lis before stated the cutoff saw, a is mounted at the end ofthe rockerarm in and continuously driven in the manner oefore explained.This saw, as shown in Fig. 1, stands in a plane directly in line withthe space between the adjacent ends of the guides g and f. The oppositeend of the rocker-arm, 5 from the saw is connected by a link with alever 39 Fig. 14: for detail) which lever is pivoted loosely on theshaft (Z. lhe opposite end of the lever is provided with a frictionroller 6, shown in dotted lines in Fig. 14 which roller is ad: ited tobe engaged by a cam projection 72- on the cam shaft. A weight Z)normally holds this lever in the position shown in g. i l, in whichposition the saw 6 will be nerd in its inoperative position. By thisconstruction, after the proper length of the work has been fed into thehopper and the feed rolls are at rest, the cam contacting the frictionroll on the lever will operate the rocker arm o to tilt the saw to theproper position to cause it to saw off a piece of the strip of wood, andas soon as the cam 7)" has passed over the friction roll the weight b'will immediately bring the saw back into its normal inoperativeposition.

Threading 86l/LU8.*A S before stated, the threading cutters a aremounted upon a shaft 61, and continuously revolved in the manner beforeexplained. This shaft e is mounted in bearings 7L1 at the upper end of amovable frame it, which frame is pivoted at its lower end on the shaft oand is normally spring-pressed laterally by the spring 7L2 (Fig. 1).Located on the cam shaft is a cam 7L adapted, at the proper time in theoperation of the machine, to engage the friction roll h on said frameand move said frame laterally against the tension of its spring so as tocause the threading cutters (1 to be moved laterally to properly performtheir threading operation. As soon as the threading operation has beencompleted and before the completed work is released by the carrier, itis preferable to throw the cutters out of the threads. To accomplishthis there isprovided on the cam shaft, 0, a :am h, (Fig. 9 for detail)adapted at the proper time to contact with the friction roll It on theframe, It, and swing the frame rearwardly; the spring in being adaptedto pull back and hold the frame in its normal position of operation.

General 0pcrati0n.-A brief description of the general operation ofthemachine is as follows: The work to be operated upon is fed in betweenthe feed rollers f f in long strips of any suitable length. The feedrolls ers carry the work throughthe guides f and g until the end of thestrip of wood contacts the stop, g Upon the contact of the strip of woodwith the stop, if the friction rolls, through any lack of properadjustn'ient, have not completed their intermittent revolution, therolls will be permitted to slide by reason of the spring-pressed bearingdescribed, l Vhen the s ip of wood has been fed to the proper position,the cutoff saw, Z), will be caused to descend and cut off that part ofthe strip which is in the guide way g. As soon as the cut-off saw hascompleted its operation, one set of the headstocks and tailstocks willbe caused to engage the ends of the cut ofi piece of work and the saidpiece of work will thereupon be carried to the proper position to beoperated upon by the first set of cutting tools, the carrier beingautomatically stopped before these tools until the piece of work hasbeen revolved by the headstock in the manner described for the period ofsomething over one revolution. As soon as the first set of cutting toolshave completed their operation upon the piece of work, the carrier willbe automatically started and revolved for another one-fourth revolutionand again automatically stopped before he second of cutting tools. Inlike manner the piece of work will be again revolved by the head stockbefore this second set of cutting tools, and as soon as the operation ofthis second set of tools has been eomzleted, the carrier will beautomatically started again to carry the work another onefourthrevolution of the carrier to proper position to be operated upon by thethreading cutters and automatically stopped before these saws and thepiece of work again revolved. As soon as the threading saws havecompleted their operation, the threading saws will first be thrown backout of the threads in the manner described and the carrier again startedupon its intermittent movement. At a suitable point beyond the threadingsaw; the work will be released from the headstock and tailsto ck byreason of the terminatioi'i of the track, a, about which the tailstocksride.

It will be understood that there will be four pieces of work beingoperated upon at the same time, one set of the headstocks and tailstocksbeing in the act of grasping a piece of work and the other three setsofheadstocks and tailstocks being employed in holding and revolving apiece of work before the respective cutting and threading tools.

It will be understood that while we have shown in the present machinefour sets of headstocks and tailstocks on the revolving carrier, anynumber may be employed, the adjustment of the respective parts of themachine being varied, of course, correspondingly. For instance if sixsets of h "adstocks and tailstocks were employed on the revolvingcarrier, it would be necessary to pro? vide for giving the carrier sixintermittent stop-and-start movements during one complete revolution. ofthe same. Likewise, five or less different sets of tools would beprovided, arranged at the respective points of stoppage of the carrierand also in such a case, the gear carrying the cam for throwing theclutches into engagement would revolve six times as fast as the carrier,the cam for the cut-off saw operate six times instead of four to throwthe cut-off saw into operation and the machine otherwise modified inaway which will be well understood. These cutting tools may be of anydesired form to give to the work any desired conformation. The threadingcutters described are only used when it is desired to provide the workwith threads as in the case when the machine is making insulator pins,and if it is desired cutters may be provided in place of these threadingcutters,'in which case the movable supporting frame would be dispensedwith.

Having thus described our invention, we claim:

1. In a many spindle lathe, comprising a carrier, driving mechanism forsaid carrier, means for automatically engaging said mechanism with saidcarrier, and means operated by the carrier for disengaging saidmechanism, substantially as specified.

2 In a many spindle lathe, a carrier, con tinuously rotating cuttingtools cofiperating with said'carrier, driving mechanism for saidcarrier, means for automatically engaging said driving mechanism withsaid car rier, and means operated by said carrier for disengaging saidmechanism at predetermined points determined by the position of saidtools, substantiallyas specified.

3. In a many spindle lathe, a rotatable carrier, a series of cuttingtools cooperating therewith, a series of work engagingdeviees on saidcarrier, driving mechanism for said carrier, means for automaticallythrowing said driving mechanism into engagement with said carrier, andmeans operated by said carrier for throwing said driving mechanism outof engagement therewith when said devices have reached the pointdetermined by the position of said cutting tools, substantially asspecified.

4:. In a many spindle lathe, a rotatable carrier, a. series of cuttingtools arranged about said carrier, a shaft having a driving engagementwith said carrier, continuously rotating driving mechanism for saidshaft, means for automatically throwing said mechanism into engagementwith said shaft, and means operated by said carrier to disengage saidmechanism from said shaft to cause said carrier to be intermittentlystopped at a point to permit said work engaging device to coiiperatewith. said cutting tools, substantially as specified.

5. In a many spindle lathe, a rotatable carrier, work engaging devicesthereon, cutting tools arranged about said carrier, a shaft having adriving engagement with said carrier, driving mechanism for said shaft,said mechanism comprising a continuously rotating sprocket-wheel on saidshaft, clutch faces on said shaft and sprocketwheel, means forautomatically throwing and holding said clutch faces into engagement,and means operated by the carrier for causing the disenga ement of saidclutch faces when said wor: engaging devices have reached a. pointco-incident with said cutting tools, substantially as specified.

6. In a many spindle lathe, a rotatable carrier, a series of workengaging devices thereon, cutting tools arranged about said carrier, ashaft, a driving mechanism for said shaft, said mechanism comprising acontinuously rotating sprocket wheel on said shaft, clutch devices onsaid shaft and sprocketwheel, a spring for holding said devices indisengaged position, means for automatically throwing said clutchdevices into engagement, a spring operated block for holding saidclutches into engagement, and means operated by the carrier for causingsaid block to release said clutch devices when said work engagingdevices have reached a point co-incident with said cutting tools,substantially as specified. 7. In a many spindle lathe, a carrier,engaging devices thereon, cutting tools arranged about said carrier, ashaft, a driving mechanism for said shaft, said mechanism comprising acontinuously rotating sprocket wheel, clutches on said shaft andsprocketwheel normally held in disengaged position, means for automaticallythrowing and holding said clutch devices into engagement, means forpermitting a limit-ed movement of said shaft clutch with respect to saidshaft, and means for disengaging said clutches at predetermined times,substantially as specified.

'8. In a many spindle lathe, the combination of a work carrier, workengaging devices on said carrier, work feeding and holding mechanisms,said holding mechanism comprising a guide-way, said guide-way having amovable bottom, a cut-off saw together with means for operating the sameafter the work has been fed into said guideway, means for operating saidmovable bottom to permit the cut-off piece of work to drop from saidguide-way, a yieldable device for catching and retaining said work whenreleased from said guide-way, and means for causing said work engagingdevices to en age and carry the work from said-yieldable device.

9. In a many spindle lathe, an intermittently rotating work carrier,work engaging devices on said carrier, work feeding mech anism, saidfeeding mechanism comprising intermittently rotating feed rolls, meansfor operating said feed rolls during each intermittent rotation of saidcarrier, an intermittently operated cut-off saw, a guide-Way having amovable bottom arranged adjacent said feed rolls, means for operatingsaid cutoff saw aft r the Work has been fed into said guide-way by saidfeed rolls, yieldable holding devices arranged adjacent said guide-Way.means for operating said movable bottom to permit the cut-off piece ofWork to drop onto said holding devices, and means for causing the Workengaging devices on said carrier to engage and carry the cut-off pieceof Work from said holding devices.

10. In a many spindle lathe, a rotatable work carrier, a series of Workengaging devices thereon, means for intermittently starting and stoppingsaid carrier, a series of continuously rotating cutting tools arrangedabout said carrier, Work feeding rolls, means connected With saidcarrier for rotating said rolls during each intermittent movement ofsaid carrier, Work holding devices to receive the Work from said feedrolls, a cut-oif saw together With means for operating the same to cutoff the Work after it has been fed into said holding. devices and saidfeeding rolls are at rest, means for causing said Work engaging devicesto engage and carry the cut-oif piece of Work from said holding devices.

11. In a many spindle lathe, an intermittently operated Work carrier,Work engaging devices on said carrier, Work feeding devices togetherWith means connected with said carrier for operating the same duringeach intermittent movement of said carrier, Work holding devicesarranged adjacent said feeding devices to receive the Work therefrom, acut-off device together With means for operating the same after the Workhas been fed into said holding devices by said feeding devices and saidfeeding devices are at rest, continuously rotating cutting toolsarranged at the points of stoppage of said carrier, and means forcausing said Work engaging devices to engage and carry the Work fromsaid holding devices, together With means for revolving said Workengaging devices at each intermittent stoppage of the carrier. I

In testimony whereof, We have hereunto set our hands this 6th day ofJuly, 1909.

CHARLES C. SHEELEY. FREDRICK J. GRUENEWALD.

Witnesses:

CHAS. I. W ELCII, A. H. l/VINDER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

